Not only it's not free, but it closed-source, too. When others (such as Scalr, Env0, SpaceLift) are using OPA, HashiCorp uses something that's not portable and that's not even using HCL. Their offering ignored not-invented-there tools such as tfsec, tflint, etc. - they only integrated recently with partners, who possibly do revenue sharing with them. Meanwhile, competitors of TFC are not sleeping and innovating way faster (Env0, for example, supports Terragrunt, which fixes many of the core Terraform issues they've been neglecting for years, such as the lack of dynamic providers). The problem is that HashiCorp is dysfunctional for the past two years. Their focus shifted to who knows what, but many providers are barely maintained (such as TLS). They have over 166 engineering jobs openings on their website - you can tell they are struggling! I guess their engineers are too busy interviewing candidates, but I assume their pay rates are below market as the positions keep staying open for months or there's a steady turnover. They jumped on the cdktf bandwagon to compete with Pulumi, but I'm not sure if that's a practical use of their resources especially when it's not even supported by their commercial offering.